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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Algarve gulls (1 Viewer)

N

ndsutcliffe

SkyBlue136
Admittedly I'm rubbish on gulls and this is not a great pic, but was intrigued by the different leg colours and wing patterns underneath so I thought I'd post for the gull experts out there.
 

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I would guess that all are Yellow-legged Gulls, from left to right; 1. 2 or 3rd cal.yr. 2. 4th year (not yet with all its "mirrors"). 3. 1st cal.yr. Leg colour is pretty wishy-washy yellowish-grey in younger birds and not really bright yellow in adults until a month or two has passed from now.
 
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